Not that I know of.....I REALLY like the Cardas Quad, I have not tried the Cardas Tri-Eutectic without lead and I may try that some day.
It may just be the special flux core that makes it work so well.
I would say Kester 44 63/37 is a close second for useability but the Cardas Quad makes much nicer looking joints and it melts @ 338F just as the specs say.
I have a Pace Process Control Station and I verified the temperature.